ETF Overlap Tool
Enter up to six ETFs to see how much of each is the same securities. Overlap by weight is the sum, over every holding two funds share, of the smaller of the two weights: 100% means identical portfolios, 0% means nothing in common.
Overlap by weight
66 holdings in all 2 funds| Fund | GMUB | MUB | Positions | Holdings |
|---|---|---|---|---|
| GMUBGoldman Sachs Municipal Income ETF | — | 1% 66 shared |
903 | as of Oct 20, 2026issuer data |
| MUBiShares National Muni Bond ETF | 1% 66 shared | — | 7,603 | as of Oct 20, 2026issuer data |
Each cell: overlap by weight, and how many positions the two funds share. Stocks, funds and bonds are compared, a bond by its own identifier and a Treasury bill by its maturity date; cash and derivatives are not, and a fund that is partly either shows how much of it is compared.
Held by both funds
1.1% common weight| Holding | GMUB | MUB | Smallest |
|---|---|---|---|
| GOVT OF THE DISTRICT OF C 5%, due Apr 1, 2060 | 0.12% | 0.09% | 0.09% |
| NEW JERSEY TURNPIKE AUTHO 5%, due Jan 1, 2043 | 0.32% | 0.05% | 0.05% |
| NEW JERSEY EDUCATIONAL FA 5%, due Jul 1, 2064 | 0.05% | 0.05% | 0.05% |
| PENNSYLVANIA TURNPIKE COM 5%, due Dec 1, 2044 | 0.08% | 0.04% | 0.04% |
| NEW JERSEY ECONOMIC DEVEL 5%, due Jun 15, 2030 | 0.16% | 0.04% | 0.04% |
| STATE OF ILLINOIS 5%, due Nov 1, 2029 | 0.37% | 0.04% | 0.04% |
| SALES TAX SECURITIZATION 5%, due Jan 1, 2035 | 0.11% | 0.04% | 0.04% |
| NEW JERSEY TRANSPORTATION, due Dec 15, 2039 | 0.29% | 0.04% | 0.04% |
| NEW JERSEY TURNPIKE AUTHO 4%, due Jan 1, 2042 | 0.04% | 0.03% | 0.03% |
| NEW JERSEY TURNPIKE AUTHO 5%, due Jan 1, 2044 | 0.03% | 0.05% | 0.03% |
| CLARK COUNTY SCHOOL DISTR 5%, due Jun 15, 2037 | 0.18% | 0.03% | 0.03% |
| NEW JERSEY ECONOMIC DEVEL 5%, due Jun 15, 2031 | 0.16% | 0.03% | 0.03% |
| NEW JERSEY ECONOMIC DEVEL 5%, due Jun 15, 2029 | 0.12% | 0.03% | 0.03% |
| TRUSTEES OF THE CALIFORNI 2.9%, due Nov 1, 2049 | 0.15% | 0.03% | 0.03% |
| NEW JERSEY TRANSPORTATION, due Dec 15, 2037 | 0.07% | 0.02% | 0.02% |
| REGIONAL TRANSPORTATION D 5%, due Nov 1, 2046 | 0.06% | 0.02% | 0.02% |
| STATE OF TEXAS 2.8%, due Oct 1, 2041 | 0.30% | 0.02% | 0.02% |
| SCHOOL BOARD OF MIAMI-DAD 5%, due Feb 1, 2032 | 0.17% | 0.02% | 0.02% |
| LOS ANGELES DEPARTMENT OF 5%, due Jul 1, 2034 | 0.04% | 0.02% | 0.02% |
| STATE OF ILLINOIS 5.25%, due May 1, 2047 | 0.02% | 0.03% | 0.02% |
| PHILADELPHIA, PENNSYLVANI 5%, due Aug 1, 2032 | 0.07% | 0.02% | 0.02% |
| DORMITORY AUTHORITY OF TH 5%, due Mar 15, 2053 | 0.39% | 0.02% | 0.02% |
| LOWER COLORADO RIVER AUTH 5%, due May 15, 2045 | 0.08% | 0.02% | 0.02% |
| NEW JERSEY ECONOMIC DEVEL 5%, due Jun 15, 2032 | 0.17% | 0.02% | 0.02% |
| ILLINOIS FINANCE AUTHORIT 4%, due Jul 1, 2038 | 0.03% | 0.01% | 0.01% |
| TRIBOROUGH BRIDGE AND TUN 5%, due Nov 15, 2047 | 0.03% | 0.01% | 0.01% |
| MASSACHUSETTS DEVELOPMENT 5%, due Aug 15, 2037 | 0.26% | 0.01% | 0.01% |
| DORMITORY AUTHORITY OF TH 3%, due Mar 15, 2038 | 0.02% | 0.01% | 0.01% |
| NEW YORK CITY TRANSITIONA 5%, due May 1, 2040 | 0.49% | 0.01% | 0.01% |
| STATE OF ILLINOIS 5.25%, due May 1, 2041 | 0.08% | 0.01% | 0.01% |
| GREAT LAKES WATER AUTHORI 5%, due Jul 1, 2031 | 0.08% | 0.01% | 0.01% |
| NEW YORK CITY MUNICIPAL W 5%, due Jun 15, 2044 | 0.16% | 0.01% | 0.01% |
| DALLAS, TEXAS (CITY OF) 5%, due Oct 1, 2041 | 0.08% | 0.01% | 0.01% |
| GOVT OF THE DISTRICT OF C 5.25%, due Jun 1, 2051 | 0.06% | 0.01% | 0.01% |
| SALT RIVER PROJECT AGRICU 5.25%, due Jan 1, 2038 | 0.12% | 0.01% | 0.01% |
| NEW JERSEY TRANSPORTATION 4%, due Jun 15, 2041 | 0.02% | 0.01% | 0.01% |
| COOK, ILLINOIS (COUNTY OF 5%, due Nov 15, 2042 | 0.26% | 0.01% | 0.01% |
| NEW JERSEY TRANSPORTATION 4%, due Jun 15, 2035 | 0.01% | 0.01% | 0.01% |
| METROPOLITAN TRANSPORTATI 5%, due Nov 15, 2035 | 0.43% | 0.01% | 0.01% |
| METROPOLITAN TRANSPORTATI 5%, due Nov 15, 2037 | 0.01% | 0.02% | 0.01% |
| CITY OF SAN ANTONIO, TEXA 3.65%, due Feb 1, 2056 | 0.15% | 0.01% | 0.01% |
| CITY OF SAN ANTONIO, TEXA 3.15%, due Feb 1, 2055 | 0.07% | 0.01% | 0.01% |
| JEFFERSON, ALABAMA (COUNT 5.25%, due Oct 1, 2042 | 0.02% | 0.01% | 0.01% |
| TEXAS TRANSPORTATION COMM 5%, due Oct 1, 2044 | 0.25% | 0.01% | 0.01% |
| NEW YORK CITY TRANSITIONA 5.25%, due Nov 1, 2044 | 0.40% | 0.01% | 0.01% |
| SOUTHERN CALIFORNIA PUBLI 5%, due Jul 1, 2053 | 0.08% | 0.01% | 0.01% |
| FORT BEND INDEPENDENT SCH 3.125%, due Aug 1, 2056 | 0.15% | 0.01% | 0.01% |
| NEW JERSEY TRANSPORTATION 5%, due Jun 15, 2037 | 0.25% | 0.01% | 0.01% |
| MARYLAND (STATE OF) 3%, due Aug 1, 2032 | 0.15% | 0.01% | 0.01% |
| CALIFORNIA MUNICIPAL FINA 5%, due Jun 30, 2032 | 0.53% | 0.01% | 0.01% |
| NEW YORK CITY TRANSITIONA 5%, due Feb 1, 2041 | 0.08% | 0.01% | 0.01% |
| NORTH TEXAS TOLLWAY AUTHO 5%, due Jan 1, 2039 | 0.16% | 0.01% | 0.01% |
| ALAMEDA CORRIDOR TRANSPOR 5%, due Oct 1, 2030 | 0.16% | 0.00% | 0.00% |
| NEW JERSEY TRANSPORTATION 5%, due Jun 15, 2039 | 0.18% | 0.00% | 0.00% |
| CHICAGO ILLINOIS BOARD OF 6%, due Apr 1, 2046 | 0.16% | 0.00% | 0.00% |
| AQUARION WATER AUTHORITY 5.25%, due Aug 1, 2046 | 0.04% | 0.00% | 0.00% |
| PHILADELPHIA PENNSYLVANIA 5%, due Sep 1, 2027 | 0.56% | 0.00% | 0.00% |
| COOK, ILLINOIS (COUNTY OF 5%, due Nov 15, 2028 | 0.08% | 0.00% | 0.00% |
| SCHERTZ-CIBOLO-UNIVERSAL 3.125%, due Feb 1, 2056 | 0.08% | 0.00% | 0.00% |
| GREAT LAKES WATER AUTHORI 5%, due Jul 1, 2031 | 0.08% | 0.00% | 0.00% |
Reading overlap
Two funds with 80% overlap move together and holding both mostly doubles one exposure and both fees. Low overlap is not the same as diversification: two funds can share no holdings and still be driven by the same factor. To see what a whole portfolio owns, use the portfolio x-ray.
Holdings come from each issuer's daily file where we have one and otherwise from the fund's latest SEC filing, so the two sides of a comparison can be from different dates. The table shows each fund's date.
Bond funds are matched issue by issue: two Treasury funds overlap only where they hold the same bill, note or bond. A fund of short-dated bills replaces its whole portfolio every few months, so holdings from an older filing may have matured; the table says when they have.
Fund data comes from each fund's SEC filings and issuer disclosures and is shown with the date it is as of. SEC portfolio and flow filings become public about 60 days after the period they cover. Nothing here is investment advice; see Terms.